How to delete all messages in Topic?

[rkbeach]

Hi All,

How do I delete all messages in a Topic programmatically?

Also, are there any JMX based programs out there to manage various Topics in JBoss? Like to find out how many messages are still waiting to be processed, how many messages are processed, to help delete x number of messages or all messages etc.

Thanks much,
Srini

[adrian.brock]

The latest version allows you to clear a topic.

It also contains information about topic subscriptions,
but this is purely a html view.

Regards,
Adrian

[rkbeach]

Hi Adrian,

Thanks much for your reply....

Are you referring to version 3.2.1? (I am using 3.2.1)

If so, how can one clear a Topic in 3.2.1?

Thanks much,
Srini

[genman]

I know you can easily erase messages from Queues, and the mechanism should be similiar for topics. You can delete them using JMX. If you venture into the JMX console, you will see the object name and method (clear) to use for your queue.

Here is how you can construct the ObjectName:

Hashtable map = new Hashtable();
map.put("service", "Queue");
map.put("name", queue.getQueueName());
return new ObjectName("jboss.mq.destination", map);

[adrian.brock]

Take a look at 3.2.2RC3

Regards,
Adrian